11421211 has 2 divisors, whose sum is σ = 11421212. Its totient is φ = 11421210.

The previous prime is 11421209. The next prime is 11421233. The reversal of 11421211 is 11212411.

11421211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11421211 - 2¹ = 11421209 is a prime.

Together with 11421209, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11421191 and 11421200.

It is not a weakly prime, because it can be changed into another prime (11421251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710605 + 5710606.

It is an arithmetic number, because the mean of its divisors is an integer number (5710606).

Almost surely, 2^11421211 is an apocalyptic number.

11421211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11421211 is an equidigital number, since it uses as much as digits as its factorization.

11421211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16, while the sum is 13.

The square root of 11421211 is about 3379.5282215126. The cubic root of 11421211 is about 225.2012093126.

Adding to 11421211 its reverse (11212411), we get a palindrome (22633622).

The spelling of 11421211 in words is "eleven million, four hundred twenty-one thousand, two hundred eleven".